sirian/oled-counter-esp32
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kinda working

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This commit is contained in:
Elias Ahokas
2025-10-17 20:08:58 +03:00
parent 41e589db5e
commit 4e1502357c
2 changed files with 117 additions and 33 deletions
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4
main/lv_conf.h
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@@ -28,8 +28,6 @@
/** Color depth: 1 (I1), 8 (L8), 16 (RGB565), 24 (RGB888), 32 (XRGB8888) */
#define LV_COLOR_DEPTH 1
#define LV_COLOR_1_BYTE 1
#define LV_USE_THEME_MONO 1
/*=========================
STDLIB WRAPPER SETTINGS
@@ -45,7 +43,7 @@
#define LV_USE_STDLIB_MALLOC LV_STDLIB_BUILTIN
/** Possible values
* - LV_STDLIB_BUILTIN: LVGL's built in implementation
* - LV_STDLIB_BUlILTIN: LVGL's built in implementation
* - LV_STDLIB_CLIB: Standard C functions, like malloc, strlen, etc
* - LV_STDLIB_MICROPYTHON: MicroPython implementation
* - LV_STDLIB_RTTHREAD: RT-Thread implementation

146
main/main.c
View File

@@ -23,7 +23,7 @@ static lv_obj_t *counter_label;
static SemaphoreHandle_t flush_sem = NULL;
static lv_color_t lv_buf[128 * 64];
static uint8_t lv_buf[(128 * 64/8)+8];
void init_i2c(void){
i2c_master_bus_config_t i2c_mst_config = {
@@ -99,8 +99,8 @@ void init_display(void){
i2c_disp_send_cmd(0x20); // Set Memory Addressing Mode
i2c_disp_send_cmd(0x00); // Horizontal addressing mode
i2c_disp_send_cmd(0xA0); // Set segment re-map (A0h/A1h)
i2c_disp_send_cmd(0xC0); // Set COM output scan direction
i2c_disp_send_cmd(0xA1); // Set segment re-map (A0h/A1h)
i2c_disp_send_cmd(0xC8); // Set COM output scan direction
i2c_disp_send_cmd(0xDA); // Set COM pins hardware configuration
i2c_disp_send_cmd(0x12); // Alternative COM pin config
@@ -134,44 +134,106 @@ void lvgl_flush_callback(lv_display_t *disp, const lv_area_t *area, uint8_t *px_
xSemaphoreTake(flush_sem, portMAX_DELAY);
uint16_t width = 128;
uint16_t height = 64;
uint16_t pages = height/8;
static uint8_t buf[128*8];
uint8_t buf[128];
memset(buf, 0, sizeof(buf));
uint8_t *pixels = px_map;
uint16_t bytes = (width * height + 7) / 8;
printf("Center pixels (64,32): %d %d %d %d\n",
pixels[32 * 128 + 62], pixels[32 * 128 + 63],
pixels[32 * 128 + 64], pixels[32 * 128 + 65]);
uint16_t bytes_per_row = width / 8;
for(uint8_t page = 0; page < pages; page++){
for(uint16_t x = 0; x < width; x++){
uint16_t bytes_per_page = bytes_per_row*8;
uint8_t byte = 0;
for(uint8_t bit = 0; bit < 8; bit++){
uint16_t y = page*8 + bit;
if(pixels[y*width+x] != 0){
byte |= (1<<bit);
}
uint8_t page = 0;
uint8_t row_byte = 0;
uint8_t byte_bit = 0;
uint8_t page_x = 0;
uint8_t page_y = 0;
for (uint16_t i = 1; i <= bytes; i++)
{
uint8_t byte = px_map[i];
for (int bit = 7; bit >= 0; bit--)
{
if (byte & (1 << bit))
{
buf[page_x] |= (1 << page_y);
printf("#");
}
buf[page*width+x] = byte;
else
{
printf(".");
}
++page_x;
}
row_byte++;
if (i % bytes_per_row == 0 && i != 0)
{
printf("pagex=%d pagey=%d", page_x, page_y);
printf(" %ld\n", (long)i);
row_byte = 0;
page_y++;
page_x = 0;
}
if(i% bytes_per_page == 0 && i != 0){
printf("\npage\n\n");
i2c_disp_send_cmd(0x22);
i2c_disp_send_cmd(page);
i2c_disp_send_cmd(page);
i2c_disp_send_data(buf, sizeof(buf));
memset(buf, 0, sizeof(buf));
page++;
page_y = 0;
}
}
i2c_disp_send_cmd(0x21);
i2c_disp_send_cmd(0);
i2c_disp_send_cmd(width-1);
/*
static uint8_t vtiled_buf[(128 * 64 / 8) + 8];
lv_draw_sw_i1_convert_to_vtiled(px_map, 1024, width, height, vtiled_buf, sizeof(vtiled_buf), false);
i2c_disp_send_cmd(0x22);
i2c_disp_send_cmd(0);
i2c_disp_send_cmd(pages-1);
i2c_disp_send_data(buf, sizeof(buf));
uint32_t pixel_count = 0;
uint16_t k = 0;
for (uint8_t page = 0; page < pages; page++){
for (uint16_t i = 0; i < width; i++){
uint8_t byte = vtiled_buf[1+ i*pages + page];
for (int bit = 0; bit <= 7; bit++){
pixel_count++;
if (byte & (1 << bit)){
buf[k++] = 1;
printf("#");
} else{
buf[k++] = 0;
printf(".");
}
}
if (i % (width / 8) == 0)
{
printf("\n");
}
}
i2c_disp_send_cmd(0x22);
i2c_disp_send_cmd(page);
i2c_disp_send_cmd(page);
i2c_disp_send_data(buf, buf_size);
k = 0;
printf("page sent");
printf("%ld", (long)pixel_count);
}
printf("%ld", (long)pixel_count);
*/
lv_display_flush_ready(disp);
xSemaphoreGive(flush_sem);
@@ -183,18 +245,30 @@ void init_graphics(void){
xSemaphoreGive(flush_sem);
}
memset(lv_buf, 0, sizeof(lv_buf));
lv_init();
printf("LVGL initialized\n");
printf("LV_COLOR_DEPTH = %d\n", LV_COLOR_DEPTH);
printf("sizeof(lv_color_t) = %zu bytes\n", sizeof(lv_color_t));
printf("sizeof(lv_buf) = %zu bytes\n", sizeof(lv_buf));
printf("Expected buffer: 128*64 = 8192 pixels\n");
lv_display_t *display = lv_display_create(128, 64);
lv_display_set_color_format(display, LV_COLOR_FORMAT_I1);
printf("Display created\n");
lv_display_set_flush_cb(display, lvgl_flush_callback);
printf("Flush callback set\n");
lv_display_set_buffers(display, lv_buf, NULL, sizeof(lv_buf), LV_DISPLAY_RENDER_MODE_FULL);
printf("lvgl buffers set");
lv_obj_t *scr = lv_screen_active();
lv_obj_set_style_bg_color(scr, lv_color_black(), 0);
lv_obj_set_style_bg_opa(scr, LV_OPA_COVER, 0);
}
void lv_tick_task(void *arg){
@@ -235,15 +309,27 @@ void create_counter(void){
lv_obj_set_style_bg_color(scr, lv_color_black(), 0);
lv_obj_set_style_bg_opa(scr, LV_OPA_COVER, 0);
counter_label = lv_label_create(lv_scr_act());
/*
lv_obj_t *box = lv_obj_create(scr);
lv_obj_set_size(box, 10, 10);
lv_obj_set_pos(box, 5, 5); // Keskelle: (64-5, 32-5)
lv_obj_set_style_bg_color(box, lv_color_white(), 0);
lv_obj_set_style_bg_opa(box, LV_OPA_COVER, 0);
lv_obj_set_style_border_width(box, 0, 0);
lv_obj_set_style_pad_all(box, 0, 0);
lv_obj_clear_flag(box, LV_OBJ_FLAG_SCROLLABLE);
*/
counter_label = lv_label_create(scr);
printf("Label created");
lv_obj_set_style_text_color(counter_label, lv_color_white(), 0);
//lv_obj_set_style_text_font(counter_label, &lv_font_montserrat_12, 0);
lv_label_set_text(counter_label, "00");
lv_obj_align(counter_label, LV_ALIGN_CENTER, 0, 0);
xTaskCreate(counter_task, "counter_task", 2048, NULL, 5, NULL);
printf("Counter task created");
printf("Counter task created");
}
void clear_display(void)